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Finding the Fourth Proportional to 96,547.80, 144,951.30 and 61,642.20

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Solution

The fourth proportional to 96,547.80, 144,951.30 and 61,642.20 is: 92,546.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,547.80 : 144,951.30 = 61,642.20 : x
  2. Step 2: Convert to fraction form
    96,547.80/144,951.30 = 61,642.20/x
  3. Step 3: Cross multiply
    96,547.80x = 144,951.30 × 61,642.20
  4. Step 4: Simplify right side
    96,547.80x = 8,935,117,024.86
  5. Step 5: Solve for x
    x = 8,935,117,024.86/96,547.80
  6. Step 6: Final answer
    x = 92,546.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.